Stamping outer ring needle roller bearing assembly machine

Abstract

The utility model discloses a stamping outer ring needle bearing assembly machine which comprises a workbench, a needle falling assembly, a material returning assembly and a feeding assembly, the needle falling assembly and the material returning assembly are fixed to the workbench, the feeding assembly is movably connected to the workbench, and the material returning assembly and the feeding assembly are located on the two sides of the needle falling assembly respectively. The needle falling assembly is provided with a needle falling channel and a needle mounting through hole communicated with the needle falling channel, the material returning assembly comprises a telescopic shaft and a telescopic shaft driving device which are connected with each other, and the feeding assembly comprises a feeding shaft and a feeding shaft driving device which are connected with each other. And the telescopic shaft is positioned in the needle mounting through hole and is used for preventing the rolling needle from falling into the needle mounting through hole. Synchronous rotation of the feeding shaft, the telescopic shaft and the retainer is achieved, rotation of the retainer during needle roller feeding is guaranteed, automatic needle mounting is achieved, the structure is simple, operation is convenient, working efficiency is effectively improved, damage to the retainer is avoided, and the yield of the retainer is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing assembly machinery, in particular to a stamping outer ring needle roller bearing assembly machine. Background Art

[0002] Needle roller bearings are a special type of rolling bearings. Their main feature is that their rolling elements are slender cylindrical needle rollers, which enable them to provide a high contact area and load capacity in a limited space, making them very suitable for applications with limited radial space. During assembly, the needle rollers need to be installed in the cage and the proper positions of the needle rollers and the inner and outer rings must be ensured to prevent them from colliding with each other during rotation.

[0003] At present, most of the domestic bearing needles are assembled manually, and workers press the needle rollers into the bearings. The manual method requires a lot of human resources, has high labor intensity, and low assembly efficiency. The existing automatic needle roller bearing assembly machines cannot adapt to the assembly of needle roller bearings of various specifications or are prone to damage to the cage during assembly, resulting in low yield.

[0004] In view of the above problems, it is necessary to provide a stamped outer ring needle roller bearing assembly machine which is easy to operate and suitable for installing various types of needle roller bearings. Utility Model Content

[0005] The utility model aims to provide a stamping outer ring needle roller bearing assembly machine to overcome the above-mentioned defects in the prior art.

[0006] The technical solution to achieve the purpose of the utility model is: a stamped outer ring needle roller bearing assembly machine, comprising a workbench, a needle drop assembly and a material stripping assembly fixed on the workbench, and a feed assembly movably connected to the workbench, the material stripping assembly and the feed assembly are respectively located on both sides of the needle drop assembly; the needle drop assembly is provided with a needle drop channel and a needle loading through hole connected to the needle drop channel, the material stripping assembly comprises a telescopic shaft and a telescopic shaft driving device connected to each other, the feed assembly comprises a feed shaft and a feed shaft driving device connected to each other, the telescopic shaft is located in the needle loading through hole and blocks the roller needle from falling into the needle loading through hole;

[0007] During assembly, the retaining frame is transported to the needle loading hole through the feed shaft, and cooperates with the telescopic shaft to align the needle drop channel with the needle loading window of the retaining frame. Driven by the telescopic shaft driving device and the feed shaft driving device, the feed shaft and the telescopic shaft drive the retaining frame to rotate synchronously to complete the needle loading. The feed shaft withdraws, and the telescopic shaft pushes the retaining frame with the needle loaded out of the needle loading hole and blocks the roller needle of the needle drop channel from falling.

[0008] As a preferred embodiment, the telescopic shaft, the needle loading through hole and the feed shaft are coaxially arranged.

[0009] As a preferred embodiment, a cylindrical retainer placement portion is provided at one end of the feed shaft, the diameter of the retainer placement portion is smaller than the diameter of the retainer, and the diameter of the feed shaft is not smaller than the diameter of the retainer.

[0010] As a preferred embodiment, one end of the telescopic shaft is provided with a chamfer, the diameter of the telescopic shaft is not less than the diameter of the retaining frame, and the diameter of the chamfered end surface of the telescopic shaft is smaller than the diameter of the retaining frame.

[0011] As a preferred embodiment, the telescopic shaft driving device includes a first bearing seat fixed on the workbench, a first bearing fixed inside the first bearing seat, a first sleeve fixed in the inner hole of the first bearing, and a first motor fixedly connected to the first bearing seat; the telescopic shaft is installed in the inner hole of the first sleeve and is slidably connected through a keyway, and a spring is also axially arranged inside the first sleeve and elastically connected to the telescopic shaft, the output shaft of the first motor is fixedly connected to the first sleeve, and the first motor drives the telescopic shaft to rotate.

[0012] As a preferred embodiment, the feed shaft driving device includes a second bearing seat movably mounted on the workbench, a second bearing fixed inside the second bearing seat, a second sleeve fixed in the inner hole of the second bearing, and a second motor fixedly connected to the second bearing seat, the feed shaft is fixedly connected to the second sleeve, the output shaft of the second motor is fixedly connected to the second sleeve, and the second motor drives the feed shaft to rotate.

[0013] As a preferred embodiment, the workbench is provided with a slide groove parallel to the direction of the feed axis, and the second bearing seat is slidably installed in the slide groove; the feed axis driving device also includes a cylinder fixed on the workbench, and the output shaft of the cylinder is fixedly connected to the second bearing seat and pushes the second bearing seat to reciprocate along the slide groove.

[0014] By adopting the above technical solution, the utility model has the following beneficial effects:

[0015] (1) The utility model realizes the synchronous rotation of the feed shaft, the telescopic shaft and the retaining frame, ensures the rotation of the retaining frame when the needle roller is loaded, realizes automatic needle loading, has a simple structure, is easy to operate, effectively improves work efficiency, avoids damage to the retaining frame, and improves the yield rate of the retaining frame.

[0016] (2) The structural design of the feed assembly and the return assembly of the utility model is simple in structure, easy to install and maintain.

[0017] (3) The utility model uses the coordinated design of the cylindrical placement portion of the feed shaft and the chamfer of the telescopic shaft to facilitate the upward movement of the retaining frame under the pressure of the feed shaft along the chamfer guide during loading, thereby achieving the purpose of clamping the retaining frame, and controlling the retaining frame to be coaxial with the needle loading through hole so that the retaining frame falls into the needle loading through hole, thereby better aligning the needle lowering channel and the needle dropping window of the retaining frame, making the needle dropping effect more stable and the product qualification rate better.

[0018] (4) The utility model realizes that after the needle is loaded, the retaining frame is automatically pushed out by the telescopic shaft, and can prevent the rolling needle from falling, thereby eliminating the manual unloading process and improving work efficiency.

[0019] (5) The utility model uses a cylinder to push the second bearing seat to move in the slide groove to realize the loading and retreat of the feed shaft, so that the feed shaft has a wider range of movement and can adapt to the installation of bearings of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0021] Figure 1 A cross-sectional view of a stamped outer ring needle roller bearing assembly machine.

[0022] Figure 2 This is an enlarged view of the matching feed shaft and telescopic shaft of a stamped outer ring needle roller bearing assembly machine.

[0023] Figure 3 Schematic diagram of the telescopic shaft blocking the needle drop channel.

[0024] The numbers in the accompanying drawings are: 1, workbench, 1-1, slide groove; 2, needle drop assembly; 21, needle drop channel, 22, needle loading hole; 3, material withdrawal assembly; 31, telescopic shaft, 32, telescopic shaft driving device, 32-1, first bearing seat, 32-2, first bearing, 32-3, first bushing, 32-4, first motor, 32-5, spring; 4, feeding assembly; 41, feeding shaft, 41-1, retaining frame placement part, 42, feeding shaft driving device, 42-1, second bearing seat, 42-2, second bearing, 42-3, second bushing, 42-4, second motor, 42-5, cylinder; 100, retaining frame; 101, needle roller. DETAILED DESCRIPTION

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the embodiments of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0030] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the scope of protection of the utility model.

[0031] (Example)

[0032] See Figure 1A stamped outer ring needle roller bearing assembly machine is used for assembling needle rollers of a retaining frame 100, comprising a workbench 1, a needle drop assembly 2 and a material stripping assembly 3 fixed on the workbench 1, and a feed assembly 4 movably connected to the workbench 1, the material stripping assembly 3 and the feed assembly 4 are respectively located on both sides of the needle drop assembly 2; the needle drop assembly 2 is provided with a needle drop channel 21 and a needle loading through hole 22 connected to the needle drop channel 21, the material stripping assembly 3 comprises a telescopic shaft 31 and a telescopic shaft driving device 32 connected to each other, the feed assembly 4 comprises a feed shaft 41 and a feed shaft driving device 42 connected to each other, the telescopic shaft 31 is located in the needle loading through hole 22 and blocks the needle roller from falling into the needle loading through hole 22.

[0033] The telescopic shaft driving device 32 includes a first bearing seat 32-1 fixed on the workbench 1, a first bearing 32-2 fixed inside the first bearing seat 32-1, a first sleeve 32-3 fixed in the inner hole of the first bearing 32-2, and a first motor 32-4 fixedly connected to the first bearing seat 32-1; the telescopic shaft 31 is installed in the inner hole of the first sleeve 32-3 and is slidably connected through a keyway, and a spring 32-5 is also axially arranged inside the first sleeve 32-3 and elastically connected to the telescopic shaft 31, the output shaft of the first motor 32-4 is fixedly connected to the first sleeve 32-3, and the first motor 32-4 drives the telescopic shaft 31 to rotate.

[0034] The feed shaft driving device 42 includes a second bearing seat 42-1 movably mounted on the workbench 1, a second bearing 42-2 fixed inside the second bearing seat 42-1, a second sleeve 42-3 fixed inside the second bearing 42-2, and a second motor 42-4 fixedly connected to the second bearing seat 42-1. The feed shaft 41 is fixedly connected to the second sleeve 42-3, and the output shaft of the second motor 42-4 is fixedly connected to the second sleeve 42-3. The second motor 42-4 drives the feed shaft 41 to rotate. The workbench 1 is provided with a slide groove 1-1 parallel to the direction of the feed shaft 41, and the second bearing seat 42-1 is slidably mounted in the slide groove 1-1; the feed shaft driving device 42 also includes a cylinder 42-5 fixed on the workbench 1, and the output shaft of the cylinder 42-5 is fixedly connected to the second bearing seat 42-1 and drives the second bearing seat 42-1 to reciprocate along the slide groove 1-1.

[0035] See Figure 2, one end of the telescopic shaft 31 is provided with a chamfer, the diameter of the telescopic shaft 31 is not less than the diameter of the retainer 100, and the diameter of the end face of the telescopic shaft 31 after chamfering is less than the diameter of the retainer 100; one end of the feed shaft 41 is provided with a cylindrical retainer placement part 41-1, the diameter of the retainer placement part 41-1 is less than the diameter of the retainer 100, and the diameter of the feed shaft 41 is not less than the diameter of the retainer 100; the telescopic shaft 31, the needle loading through hole 22 and the feed shaft 41 are coaxially arranged. Through the coordinated design of the cylindrical placement part of the feed shaft and the chamfer of the telescopic shaft, it is convenient to realize that when the retainer is loaded, it is guided by the chamfer under the pressure of the feed shaft to rise, so as to achieve the purpose of clamping the retainer, and the retainer and the needle loading through hole are controlled to be coaxial, so that the retainer falls into the needle loading through hole, and the alignment of the lower needle channel and the retainer needle dropping window is better realized, so that the needle dropping effect is more stable and the product qualification rate is better.

[0036] During assembly, the holder 100 is conveyed to the needle loading through hole 22 by the feed shaft 41, and the needle drop channel 21 is aligned with the needle loading window of the holder 100 in cooperation with the telescopic shaft 31. Driven by the telescopic shaft driving device 32 and the feed shaft driving device 42, the feed shaft 41 and the telescopic shaft 31 drive the holder 100 to rotate synchronously to complete the needle loading. The feed shaft 41 withdraws, and the telescopic shaft 32 pushes the holder 100 with the needle loaded out of the needle loading through hole 22. Figure 3 , and blocks the rolling needle of the needle drop channel 21 from falling, waiting for the next round of needle loading.

[0037] This embodiment can realize the synchronous rotation of the feed shaft, telescopic shaft and cage, ensure the rotation of the cage when the needle roller is loaded, realize automatic needle loading, have a simple structure, convenient operation, effectively improve work efficiency, avoid damage to the cage, and improve the yield rate of the cage. In addition, the design of using the telescopic shaft to block the needle channel can save the manual unloading process and improve work efficiency. The cylinder pushes the second bearing seat to move in the slide groove to realize the loading and retreat of the feed shaft, so that the feed shaft has a wider range of activities and can adapt to the installation of bearings of various specifications.

[0038] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stamped outer ring needle roller bearing assembly machine, characterized in that: The invention comprises a workbench (1), a needle drop assembly (2) and a material return assembly (3) fixed on the workbench (1), and a material feed assembly (4) movably connected to the workbench (1), wherein the material return assembly (3) and the material feed assembly (4) are respectively located on both sides of the needle drop assembly (2); the needle drop assembly (2) is provided with a needle drop channel (21) and a needle loading through hole (22) connected to the needle drop channel (21); the material return assembly (3) comprises a telescopic shaft (31) and a telescopic shaft driving device (32) connected to each other; the material feed assembly (4) comprises a feed shaft (41) and a feed shaft driving device (42) connected to each other; the telescopic shaft (31) is located in the needle loading through hole (22) and blocks the roller needle from falling into the needle loading through hole (22); During assembly, the retaining frame (100) is transported to the needle loading through hole (22) through the feed shaft (41), and cooperates with the telescopic shaft (31) to align the needle drop channel (21) with the needle loading window of the retaining frame (100). Driven by the telescopic shaft driving device (32) and the feed shaft driving device (42), the feed shaft (41) and the telescopic shaft (31) drive the retaining frame (100) to rotate synchronously to complete the needle loading. The feed shaft (41) is withdrawn, and the telescopic shaft (31) pushes the retaining frame (100) with the needle loaded out of the needle loading through hole (22) and blocks the rolling needle of the needle drop channel (21) from falling.

2. The stamped outer ring needle roller bearing assembly machine according to claim 1, characterized in that: The telescopic shaft (31), the needle-loading through hole (22) and the feeding shaft (41) are arranged coaxially.

3. The stamped outer ring needle roller bearing assembly machine according to claim 2, characterized in that: A cylindrical retainer placement portion (41-1) is provided at one end of the feed shaft (41), the diameter of the retainer placement portion (41-1) is smaller than the diameter of the retainer (100), and the diameter of the feed shaft (41) is not smaller than the diameter of the retainer (100).

4. The stamped outer ring needle roller bearing assembly machine according to claim 3, characterized in that: One end of the telescopic shaft (31) is provided with a chamfer, the diameter of the telescopic shaft (31) is not less than the diameter of the retaining frame (100), and the diameter of the chamfered end surface of the telescopic shaft (31) is less than the diameter of the retaining frame (100).

5. The stamped outer ring needle roller bearing assembly machine according to claim 1, characterized in that: The telescopic shaft driving device (32) comprises a first bearing seat (32-1) fixed on the workbench (1), a first bearing (32-2) fixed inside the first bearing seat (32-1), a first shaft sleeve (32-3) fixed in the inner hole of the first bearing (32-2), and a first motor (32-4) fixedly connected to the first bearing seat (32-1); the telescopic shaft (31) is installed in the inner hole of the first shaft sleeve (32-3) and is slidably connected via a keyway, and a spring (32-5) is also axially arranged inside the first shaft sleeve (32-3) and is elastically connected to the telescopic shaft (31); an output shaft of the first motor (32-4) is fixedly connected to the first shaft sleeve (32-3), and the first motor (32-4) drives the telescopic shaft (31) to rotate.

6. The stamped outer ring needle roller bearing assembly machine according to claim 1, characterized in that: The feed shaft driving device (42) comprises a second bearing seat (42-1) movably mounted on the workbench (1), a second bearing (42-2) fixed inside the second bearing seat (42-1), a second shaft sleeve (42-3) fixed in the inner hole of the second bearing (42-2), and a second motor (42-4) fixedly connected to the second bearing seat (42-1); the feed shaft (41) is fixedly connected to the second shaft sleeve (42-3); the output shaft of the second motor (42-4) is fixedly connected to the second shaft sleeve (42-3); and the second motor (42-4) drives the feed shaft (41) to rotate.

7. The stamped outer ring needle roller bearing assembly machine according to claim 6, characterized in that: The workbench (1) is provided with a slide groove (1-1) parallel to the direction of the feed shaft (41), and the second bearing seat (42-1) is slidably installed in the slide groove (1-1); the feed shaft driving device (42) also includes a cylinder (42-5) fixed on the workbench (1), and the output shaft of the cylinder (42-5) is fixedly connected to the second bearing seat (42-1) and drives the second bearing seat (42-1) to reciprocate along the slide groove (1-1).

Images